工程设计学报2017，Vol.24Issue(6)：710-716,7.DOI:10.3785/j.issn.1006-754X.2017.06.015
一种新型多级可变径稳定器工作机理研究
Research on a new type of multistage variable diameter stabilizer working mechanism
摘要
Abstract
Since the complicated structure of domestic variable diameter stabilizer and the high manufacturing cost ,a new multistage variable diameter stabilizer was designed for fine-tuning horizontal well trajectory .The diameter of stabilizer could achieve multilevel changes by changing the state of the pin in the stroke control wheel guide chute under the control of drilling fluid driv -ing force ,and its working principle was introduced in view of its structural characteristics .Based on the theory of vertical and horizontal bending method and considering the combined effect of load and bending moment ,a mechanical model of the downhole drilling tool assembly with multi-stage variable diameter stabilizer was established ,the relational expression between the drilling fluid driving force and the length of the stabilizer support block was obtained and the minimum drilling fluid driving force and the drill bit tilt angle in different extension length of the support block were calculated .The results show that the multistage variable diameter stabilizer can realize the function of increasing slope ,decreasing slope and stabilizing slope ,which can provide techni-cal guidance for the structural design and optimization of multistage variable diameter stabilizers .关键词
可变径稳定器/行程控制轮/纵横弯曲法/井眼轨迹微调/钻井液驱动力Key words
variable diameter stabilizer/stroke control wheel/vertical and horizontal bending method/wellbore trajectory fine-tuning/driving force of the drilling fluid分类
能源科技引用本文复制引用
杨行,夏成宇,钱利勤,涂忆柳,孙巧雷,王鹏..一种新型多级可变径稳定器工作机理研究[J].工程设计学报,2017,24(6):710-716,7.基金项目
国家自然科学基金资助项目 (51405032) （51405032）
西南石油大学油气藏地质及开发工程国家重点实验室资助项目(PLN201605) （PLN201605）
石油天然气装备教育部重点实验室(OGE201403-06) （OGE201403-06）
长江大学青年人才基金资助项目(2015cqr15) （2015cqr15）
